malfunction or Suruis shutting me down.

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Have 2007 4runner Limited, with the 10 speakers and 6-disc head unit. I installed Sirius with the TOY-SC1 and SCC1C Tuner. I Installed the Hardware and all was good, I was listing to Sirius working. When this happen last winter I parker the 4Runner in the garage at night. Every morning I go to work the Sirius Sat radio would work. (NO reception in the garage and radio would stay on.) This summer I park in the driveway turn on the 4Runner and the radio would be off. Turn the Radio on and only get AM on the AM / Sat button, it would not toggle to Sat. Unplug the Toy-SC1 , wait 1 min. and plug in back in